NGK offers you Iridium spark plugs designed with a fine iridium electrode for more efficient ignition and more complete combustion of the air-fuel mixture. They improve engine stability at all speeds, facilitate cold starts and ensure more consistent running thanks to a more concentrated and reliable spark. They also offer excellent resistance to wear and high temperatures, guaranteeing extended service life and consistent performance over time, even in intensive or off-road use. Last but not least, their design reduces clogging and minimizes misfiring for smoother, more efficient engine operation.